X4 Pharmaceuticals, Inc
For the period ended Dec 31, 2025. Filed Mar 17, 2026.
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FY2025 · Filed Mar 17, 2026
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Item 2. Properties
We lease approximately 28,000 square feet of office space at 61 North Beacon Street, 4th Floor, Boston, Massachusetts, which serves as our corporate headquarters. The lease expires on November 30, 2026. The base monthly payment on the lease is approximately $96 thousand as of December 31, 2025, not including operating expenses, certain utilities, taxes and insurance for which we are responsible. We have the right to sublease the premises, subject to landlord consent.
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